Anyway, NOT an advice but just some information. US owes more money than it can earn per year and getting worst...so it needs to print more money which means every dollar is worth less and less. The money is not backed by any precious material (eg gold), only the promise that the paper is good.

So lets say every year drop 5%, it will still beat putting it into local saving account 0.1%. Not counting inflation of course, just comparing currency. Simple solution is to convert back to SGD once mature and forget about the headache of opening foreign currency accounts/etc